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Definition: 1 Mark
Each constituent: 2 Marks
The skeleton is an internal framework of all the bones and cartilage in the human body. It is made up of 206 bones. It gives the shape and structure to support the body. Babies at birth possess 300 separate bones. Later some of the bones fuse together and finally an adult has 206 bones making up the skeleton.
Boneis a type of fibrous connective tissue. Bones provide support to the structures in the body. Bone cells are embedded in a hard matrix composed of calcium and phosphorus compounds. Bones also anchor the muscles. The strongest, longest and the heaviest bone in the human body is femur. It is located in the thigh region of the leg.
Cartilageis a soft elastic tissue that covers the bones at the region of the joints. It offers support to the structure. It connects the bones together.Cartilagehas widely spaced cells suspended in a matrix of proteins and sugars. It is found in the nose, earsand the rings of the trachea to give flexibility.